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  1. All Filters
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  3. 20” x 4.5”
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  5. 25 Micron Radial Flow Carbon Cartridge

Hydronix SDP-4520 Radial Flow Filter (Pentek RFC20-BB Compatible)

SpiroPure SP-RFC-20BB

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List Price $54.68

Our Price: $31.27

See notes below

SUPER VALUE

List Price $218.74

4 Filters: $125.08

($31.27/ea.)

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Hydronix SDP-4520

  • No Warranty
List Price $59.99

Our Price: $51.57

See notes below

SUPER VALUE

List Price $359.94

6 Filters: $309.42

($51.57/ea.)

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  • Product Overview
  • Compatible Housings

This item is available in Super Value case packs only.

Hydronix SDP-4520 Radial Flow Carbon Specifications
  • Dimensions: 4.5" D x 20" L
  • Rating: 25 micron
  • Initial ΔP (psi) at Flow Rate (gpm): 0.9 psi at 4 gpm
  • Country of Origin: Taiwan
Compatible Part or Model Numbers
  • American Plumber WRC25HD20, WRC25-HD20, 155247-51
  • Ametek RFC-20BB
  • Bruner RFC-20BB
  • Culligan RFC-20BB
  • Kleen Plus RFC-20BB
  • Pentek RFC-20BB, 155247-43
  • Plymouth Products RFC-20BB
  • USFilter / US Filter RFC-20BB
Compatible Housings
  • Hydronix HF45-20BLBK34, HF45-20BLBK34PR, HF45-20BLBK10, HF45-20BLBK10PR, HF45-20CLBK10PR, HF45-20BLBK15, HF45-20BLBK15PR
  • Pentek 10" / #20 Big Blue, Big White, and Big Clear housings
  • Pentek 150467, 150233, 150234, 150239, 150240, 150235, 150236, 166227, 166141, 166142, 166144, 150111, 150194
  • Most brands' 20" x 4.5" housings

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